Modeling soil erosion and its response to land-use change in hilly catchments of the Chinese Loess Plateau

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 城市与区域生态国家重点实验室

	Modeling soil erosion and its response to land-use change in hilly catchments of the Chinese Loess Plateau
	Feng, Xiaoming ; Wang, Yafeng ; Chen, Liding ; Fu, Bojie ; Bai, Gangshuan
刊名	GEOMORPHOLOGY
	2010-06-01
卷号	118 期号:3 页码:239-248
关键词	Soil erosion Land use Loess Plateau WATEM/SEDEM model
中文摘要	Soil erosion is a major environmental problem threatening the sustainable development of the Chinese Loess Plateau. Distributed soil erosion models can be used for studying erosion patterns in relation to alternative land-use conditions, identifying sediment sources, and hence guiding soil and water conservation planning. In this study, we used the WATEM/SEDEM model to predict annual erosion patterns with respect to land-use change within a typical hilly catchment in the Loess Plateau. Soil erosion rates derived from (137)Cs measurements in a nearby catchment were used to calibrate the model. The model's performance was assessed by comparing the simulated erosion pattern with the field observations, based on the model efficiency (ME), relative root mean square error (RRMSE) and kappa statistics. It was found that the WATEM/SEDEM model performs poorly in predicting erosion amounts for each raster cell used for the modeling, but is more reliable in predicting the spatial pattern of erosion. For the entire catchment, the land-use conversions between 1990 and 2005 reduced soil erosion, largely due to the Grain-for-Green project initiated by the Chinese central government. We also compared the contribution of specific land-use types to soil erosion reduction, and addressed the possible influences of land-use policy upon soil erosion. (C) 2010 Elsevier B.V. All rights reserved.
WOS记录号	WOS:000277904600002
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/20996]
专题	生态环境研究中心_城市与区域生态国家重点实验室
推荐引用方式 GB/T 7714	Feng, Xiaoming,Wang, Yafeng,Chen, Liding,et al. Modeling soil erosion and its response to land-use change in hilly catchments of the Chinese Loess Plateau[J]. GEOMORPHOLOGY,2010,118(3):239-248.
APA	Feng, Xiaoming,Wang, Yafeng,Chen, Liding,Fu, Bojie,&Bai, Gangshuan.(2010).Modeling soil erosion and its response to land-use change in hilly catchments of the Chinese Loess Plateau.GEOMORPHOLOGY,118(3),239-248.
MLA	Feng, Xiaoming,et al."Modeling soil erosion and its response to land-use change in hilly catchments of the Chinese Loess Plateau".GEOMORPHOLOGY 118.3(2010):239-248.